Thank you. I woke up Sat. a.m. and again today with real pain in my left eye, and very red. Like I had something in my eye, but I did not. It hurt to open it and hurt to close it. Used a cool cloth, for about an hour & pain subsided. I am being treated for 'dry eyes', with optical cloths & Systane vials, but this was very different. thank you ! YYYY@YYYY